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Fabrication and Characterization of Large, Perfectly Periodic Arrays of Metallic Nanocups

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Abstract

Fabrication of plasmonic resonance devices composed of large arrays of highly ordered gold nanocups is presented. The nanostructures are generated from periodic photoresist templates created by interference lithography and subsequent reflow, deposition, and dislodging. The nanocups are hemispherical in shape and arranged in both rectangular and hexagonal arrays with periods of ~500 nm. Their ability to support surface plasmonic resonances is manifested experimentally by reflectance spectroscopy. Theoretical modeling to ascertain the plasmonic spectra of these nanostructures is performed. The computed spectra of the rectangular structure are in qualitative agreement with the measurements. A weaker correlation observed for the hexagonal structure is explained by its more intricate symmetry which complicates the spectral response.

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Acknowledgments

This research was supported in part by the Energy Research Fund of the National Power Company of Iceland and by the UT System Texas Nanoelectronics Research Superiority Award funded by the State of Texas Emerging Technology Fund. Additional support was provided by the Texas Instruments Distinguished University Chair in Nanoelectronics endowment. We thank Mick Nguyen for assistance with the experiments.

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Authors and Affiliations

  1. School of Science and Engineering, Reykjavik University, Menntavegur 1, 101, Reykjavik, Iceland

    H. G. Svavarsson

  2. Department of Electrical Engineering, University of Texas at Arlington, Box 19016, Arlington, TX, 76019, USA

    J. W. Yoon, M. Shokooh-Saremi & R. Magnusson

  3. Department of Electrical Engineering, Ferdowsi University of Mashhad, Mashhad, Iran

    M. Shokooh-Saremi

  4. Department of Physics, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul, 133-791, Republic of Korea

    S. H. Song

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  1. H. G. Svavarsson
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  2. J. W. Yoon
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  3. M. Shokooh-Saremi
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  4. S. H. Song
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  5. R. Magnusson
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Correspondence to H. G. Svavarsson.

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Svavarsson, H.G., Yoon, J.W., Shokooh-Saremi, M. et al. Fabrication and Characterization of Large, Perfectly Periodic Arrays of Metallic Nanocups. Plasmonics 7, 653–657 (2012). https://doi.org/10.1007/s11468-012-9355-3

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  • DOI: https://doi.org/10.1007/s11468-012-9355-3

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